Shake the black Sharkk 5000mAh Dual USB Port Charger and Power Bank to provide extra power to your USB devices. It is equipped with two USB ports that offer a combined output of 3.4A and a 5000mAh battery to recharge up to two devices. You can charge your tablet using its 2.4A USB port and a smartphone with the 1A USB port. Additionally, utilize it as a wall charger to power up your devices when you have access to an AC outlet or charge up the internal battery, simultaneously. Furthermore, it features a compact design and a Smart IC chip that enables faster charging.